WO2019057262A1 - Preparation of zerovalent aluminium nanoparticles at room temperature and uses thereof - Google Patents

Preparation of zerovalent aluminium nanoparticles at room temperature and uses thereof Download PDF

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Publication number
WO2019057262A1
WO2019057262A1 PCT/EG2017/000029 EG2017000029W WO2019057262A1 WO 2019057262 A1 WO2019057262 A1 WO 2019057262A1 EG 2017000029 W EG2017000029 W EG 2017000029W WO 2019057262 A1 WO2019057262 A1 WO 2019057262A1
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WO
WIPO (PCT)
Prior art keywords
nzval
particles
prepared
aluminium
pollutants
Prior art date
Application number
PCT/EG2017/000029
Other languages
Arabic (ar)
French (fr)
Inventor
أحمد حمدي سعد الدين صادق،
محمد مصطفى
Original Assignee
أحمد حمدي سعد الدين صادق،
محمد مصطفى
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by أحمد حمدي سعد الدين صادق،, محمد مصطفى filed Critical أحمد حمدي سعد الدين صادق،
Publication of WO2019057262A1 publication Critical patent/WO2019057262A1/en

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B6/00—Hydrides of metals including fully or partially hydrided metals, alloys or intermetallic compounds ; Compounds containing at least one metal-hydrogen bond, e.g. (GeH3)2S, SiH GeH; Monoborane or diborane; Addition complexes thereof
    • C01B6/06—Hydrides of aluminium, gallium, indium, thallium, germanium, tin, lead, arsenic, antimony, bismuth or polonium; Monoborane; Diborane; Addition complexes thereof
    • C01B6/10—Monoborane; Diborane; Addition complexes thereof
    • C01B6/13—Addition complexes of monoborane or diborane, e.g. with phosphine, arsine or hydrazine
    • C01B6/15—Metal borohydrides; Addition complexes thereof
    • C01B6/19—Preparation from other compounds of boron
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01D—COMPOUNDS OF ALKALI METALS, i.e. LITHIUM, SODIUM, POTASSIUM, RUBIDIUM, CAESIUM, OR FRANCIUM
    • C01D13/00—Compounds of sodium or potassium not provided for elsewhere
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01F—COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM, CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THE RARE-EARTH METALS
    • C01F7/00—Compounds of aluminium
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01F—COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM, CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THE RARE-EARTH METALS
    • C01F7/00—Compounds of aluminium
    • C01F7/02—Aluminium oxide; Aluminium hydroxide; Aluminates
    • C01F7/38—Preparation of aluminium oxide by thermal reduction of aluminous minerals

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  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Thermal Sciences (AREA)
  • Peptides Or Proteins (AREA)

Abstract

The invention relates to the preparation of particles of nano zerovalent aluminium (nZVAl) by chemically reducing a salt thereof by means of sodium borohydride, which is the first experiment for preparing nZVAl particles in this way, using reaction conditions such as the reactant arrival rate and concentrating both the reducing agent and the identified aluminium salt as reactants. The particles of nZVAl prepared under different preparation conditions are identified by the morphological shape, crystallisation, qualitative surface area, intended sedimentation rates and sedimentation volume, and also by visually observing the nZVAl particles react with the acid. The morphological shape, internal composition and size of the nZVAl particles are studied using field-emission scanning electron microscopy (FE-SEM), high-resolution transmission electron microscopy (HR-TEM) and atomic force microscopy (AFM). These techniques showed that most of the prepared aluminium particles appeared round with diameters between 10 nm and 10nm, which is consistent with calculations and practical results obtained using X-ray diffraction (XRD) and AFM testing. Dynamic light scattering (DLS) measurements were taken to determine the hydrodynamic diameter of the particles in liquid suspensions, providing a very broad size distribution in the range of 0.4-1000 nm. The nZVAl particles formed were also tested using ultraviolet–visible spectrophotometry (UV–Vis). A supercrest was recorded at a wavelength of 204 nm=λmax in addition to two crests at wavelengths of λ=369.7 nm and λ=204 nm, respectively, which indicate nZVAl particles. The nZVAl particles also underwent several thermal analyses, such as differential thermal analysis (DTA) and thermal gravimetric analysis (TGA), and XRD studies confirmed that four crests corresponding to pure aluminium were observed and that the average size of the nZVAl particles was close to 34 nm. A Fourier-transform infrared (FTIR) spectrum representing nZVAl particles provided data on functional groups, and five crests exhibited absorption at different wavelengths. The metal composition of the nZVAl particles prepared was studied by means of X-ray fluorescence (XRF) testing. The sediment resulting from the molar ratio 1:10 had good purity and largely comprised nZVAl particles. This is consistent with the results of other analyses. The activity of the prepared nZVAl particles was tested, as was the effectiveness of nZVAl in removing different pollutants from liquid solutions, including organic pollutants such as methylene blue dye, and inorganic pollutants such as heavy metals like copper. The chemically prepared nZVAl was shown to be highly effective in removing these pollutants.
PCT/EG2017/000029 2017-09-20 2017-10-12 Preparation of zerovalent aluminium nanoparticles at room temperature and uses thereof WO2019057262A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EG2017091562 2017-09-20
EG2017091562 2017-09-20

Publications (1)

Publication Number Publication Date
WO2019057262A1 true WO2019057262A1 (en) 2019-03-28

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EG2017/000029 WO2019057262A1 (en) 2017-09-20 2017-10-12 Preparation of zerovalent aluminium nanoparticles at room temperature and uses thereof

Country Status (1)

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WO (1) WO2019057262A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110813212A (en) * 2019-10-28 2020-02-21 苏州热工研究院有限公司 Method for inhibiting nano-silver generation

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
AYESHA KAHN ET AL.: "A chemical reduction approach to the synthesis of copper nanoparticles", INTERNATIONAL NANO LETTERS, vol. 6, no. 1, 9 November 2015 (2015-11-09), pages 21 - 26, XP055694057, DOI: 10.1007/s40089-015-0163-6 *
WOO-SEUK SONG, HYE-SEUNG LEE, JU CHUL LEE, DONG SEON JANG, YOONYOUNG CHOI, MOONGOO CHOI, HEESUN YANG: "Amine-derived synthetic approach to color-tunable InP/ZnS quantum dots with high fluorescent qualities", JOURNAL OF NANOPARTICLE RESEARCH, SPRINGER NETHERLANDS, vol. 15, no. 6, 1 June 2013 (2013-06-01), XP055206532, ISSN: 13880764, DOI: 10.1007/s11051-013-1750-y *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110813212A (en) * 2019-10-28 2020-02-21 苏州热工研究院有限公司 Method for inhibiting nano-silver generation

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